256346536 has 16 divisors (see below), whose sum is σ = 508923540. Its totient is φ = 120633600.

The previous prime is 256346491. The next prime is 256346539. The reversal of 256346536 is 635643652.

256346536 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 253128100 + 3218436 = 15910^2 + 1794^2 .

It is not an unprimeable number, because it can be changed into a prime (256346539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942315 + ... + 942586.

Almost surely, 2^256346536 is an apocalyptic number.

It is an amenable number.

256346536 is a deficient number, since it is larger than the sum of its proper divisors (252577004).

256346536 is a wasteful number, since it uses less digits than its factorization.

256346536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884924 (or 1884920 counting only the distinct ones).

The product of its digits is 388800, while the sum is 40.

The square root of 256346536 is about 16010.8255877078. The cubic root of 256346536 is about 635.2467976549.

The spelling of 256346536 in words is "two hundred fifty-six million, three hundred forty-six thousand, five hundred thirty-six".